How to load text file to workspace variables?
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Hi,
I wonder how to read/load variables from text file to matlab, with following format:
var1 val1
var2 val2
var3 val3
var4 val4
I want them to be loaded to workspace as variables with string name in var and numeric value as val.
2 Kommentare
Stephen23
am 26 Okt. 2019
Use indexing.
Indexing is neat, simple to debug, and very efficient (unlike what you are trying to do).
Antworten (1)
per isakson
am 26 Okt. 2019
Bearbeitet: per isakson
am 26 Okt. 2019
"load to workspace as variables with string name in var and numeric value as val." There need to be a really good reason to do that, because it comes at a cost. Read Why Variables Should Not Be Named Dynamically and then read Magically Making Variables Appear in a Workspace is Risky a second time.
After reading try
cssm
which outputs
Name Size Bytes Class Attributes
S 1x1 736 struct
var1 1x1 8 double
var2 1x1 8 double
var3 1x1 8 double
var4 1x1 8 double
where (in one m-file named cssm.m)
%%
fid = fopen( 'cssm.txt' );
cac = textscan( fid, '%s%f' );
fclose( fid );
%%
for jj = 1 : length(cac{1})
S.( cac{1}{jj} ) = cac{2}(jj); % dynamic names in a structure
assign( cac{1}{jj}, cac{2}(jj) ) % magically "poof" variables
end
whos S v*
function assign( name, val )
assignin( 'caller', name, val );
end
and where cssm.txt contains
var1 1
var2 2
var3 3
var4 4
Finally, are there any good reasons not to use "dynamic names in a structure" ?
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